George rogers



@uitrit `tst5 @anni @ffice GEORGE ROGERS, or PHILADELPHIA, PENNSYLVANIA.

.Lettera Ptite-nt .Nod 62,688, deteol March 5, 1867.

IMPROVEMENT IN GASTINGIIPES.-

@ige Stigebulenfemttu in tlgcse cttfers 'eztnittnt mnkngmtt tf tigt sature;

TO ALL WHOM IT MAY CONCERNN l Bo it'known that I, GEORGE ROGERS, of Philadelphia, in the countj' of Philadelphia, in the Stateof Pennsylnnia., have inventerls. new and improved' Mode oi' Costing Pipes Vfornrtesian or .oil Wells; Aonli I do hereby I declare thefoilowing to be a. full and exact description thereof, reference being had to the accompanying drawi ings, forming part of this description, in whichl I Figure l representen. longitudinal section through alpipe, and `through the core, core-spindle, mould, chills, and flask used in making the pipe.

Figure 2 represents a section ou the line A Bl; and Figure 3 represents u section on the line G D. The letters of reference indicate in all lthe views v'similar parts. To enable others skilled in the art to use'lny'invcntion", I will 4proceed todescribe it. My improved Inode consists in the use of rings or chills of inetal, asnt A 'A, figs. 1 and 2,`i`oiforming the moulds within which are cast the ends' of the'pipe B B, iigs. 2, and 3, whereby the necessity of facing and turning ofi' the ends for the bands (which aroused in connecting any two pipes together when sinking a well,) is

avoided. The completed mould (or matrix) for the pipe B B is obtained by placing therings A A upon the4 A, core C C, (which lcore isformed in any' customary way by :rhollow coreQspindlc, e, upon which is placed the hay-band, loom, sund, or other substnce, d d,) in such manner as to forni a, truly concentric space for the ends ries, in the ilnsk Gr. G.

of the pipe B B, end the whole being laid-in the sand-mould F'F, before madevin the usualpmfmner of the foundi I :rm aware that the form of pipe shown in the drawings is that patented by J. N. Bulles, June 19, 1855, and that `my improvement is applicable under-'unil for the purposes voi' his patent, as well :is in other forms, wherein the joints may not be made flush.

' What ciim as my invention, and desire to secure by-Letters Patent, is

The'use oi' the rings or chills A A, in` the manner and for the purposes described. GEORGE ROGERS.y

Witnesses:

Beur. Brunes, ,JAMVIWILxINsos 

